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Showing 1–24 of 53 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Vaginal Progesterone Clear all
Completed Phase 4 Interventional Results available

Menopur® Versus Follistim® in Polycystic Ovarian Syndrome (PCOS)

NCT00805935
View directory record Official record
Conditions
Polycystic Ovarian Syndrome, Infertility
Interventions
Menotropin, Progesterone vaginal insert, Follitropin beta, Progesterone in oil, leuprolide acetate
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years to 42 Years · Female only
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
6
States / cities
Littleton, Colorado • Clearwater, Florida • Chicago, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2012 · Synced Sep 3, 2026, 8:03 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Vaginal Progesterone for the Prevention of Preterm Birth in Women With Arrested Preterm Labor

NCT01840228
View directory record Official record
Conditions
Premature Birth, Obstetric Labor, Premature
Interventions
Micronized progesterone suppository
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Sep 3, 2026, 8:03 AM EDT
Withdrawn Phase 2Phase 3 Interventional Accepts healthy volunteers

Vaginal Progesterone in Twins With Short Cervix

NCT01812239
View directory record Official record
Conditions
Premature Birth
Interventions
Vaginal Progesterone gel., fetal fibronectin swab., Placebo gel
Drug · Procedure
Lead sponsor
Obstetrix Medical Group
Industry
Eligibility
18 Years to 60 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced Sep 3, 2026, 8:03 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Mifepristone Induction for Fetal Demise

NCT02620904
View directory record Official record
Conditions
Intrauterine Fetal Demise, Fetal Death
Interventions
Mifepristone, placebo
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
16 Years and older · Female only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Sep 3, 2026, 8:03 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

A Randomized Trial of Pessary in Singleton Pregnancies With a Short Cervix

NCT02901626
View directory record Official record
Conditions
Short Cervix, Preterm Delivery
Interventions
Arabin Cervical Pessary
Device
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
Female only
Enrollment
544 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
12
States / cities
Birmingham, Alabama • Chicago, Illinois • New York, New York + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Not applicable Interventional Results available

Pilot Study of Femring Estrogen Supplementation During Depo-Provera Initiation

NCT00563576
View directory record Official record
Conditions
Metrorrhagia
Interventions
Femring®, DepoProvera ®
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Female only
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced Sep 3, 2026, 8:03 AM EDT
Completed No phase listed Observational

Progesterone Support of FET

NCT01058382
View directory record Official record
Conditions
Frozen Embryo Pregnancy Rate
Interventions
Progesterone Vaginal Suppositories, Intramuscular Progesterone-in-Oil
Drug
Lead sponsor
Charles Coddington
Other
Eligibility
20 Years to 50 Years · Female only
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 9, 2013 · Synced Sep 3, 2026, 8:03 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Vaginal Ecosystem and Network in the United States Study

NCT06472765
View directory record Official record
Conditions
Bacterial Vaginosis, Candidiasis, Urinary Tract Infections, Genitourinary Syndrome of Menopause, Lichen Sclerosus, Lichen Planus, Vulvodynia, Endometriosis, Ureaplasma Infections, Cancer, Desquamative Inflammatory Vaginitis
Interventions
Vaginal Swab Collection
Diagnostic Test
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
3,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
20
States / cities
Fullerton, California • Los Angeles, California • Pasadena, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Vaginal Progesterone Versus Progesterone in Oil in Donor Egg Recipient In Vitro Fertilization Cycles Utilizing Vitrified Donor Eggs

NCT01465373
View directory record Official record
Conditions
Infertility
Interventions
Endometrin, Progesterone in Oil
Drug
Lead sponsor
Fertility Centers of Illinois
Other
Eligibility
21 Years to 49 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 3, 2011 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 2Phase 3 Interventional

Vaginal Progesterone Supplementation in Women With PCOS Undergoing Ovulation Induction With Letrozole

NCT03440359
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Progesterone Vaginal Gel 8%, Letrozole Oral Tablet, pelvic ultrasound, Ovidrel 250 MCG Per 0.5 ML Prefilled Syringe, Intrauterine insemination or timed intercourse
Drug · Diagnostic Test · Other
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2018 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Assessing the Endometrial Environment in Recurrent Pregnancy Loss and Unexplained Infertility

NCT03401918
View directory record Official record
Conditions
Recurrent Pregnancy Loss, Unexplained Infertility
Interventions
Uterine ERA and microbiome testing, Oral antibiotics and vaginal probiotics
Diagnostic Test · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 3, 2026, 8:03 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Progesterone for Maintenance Tocolysis: A Randomized Placebo Controlled Trial

NCT00946088
View directory record Official record
Conditions
Pregnancy Complications
Interventions
Progesterone, Polyethylene glycol&hydrogenated vegetable oil.
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Sep 3, 2026, 8:03 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Uterine Electrical Activity Before and After Progesterone Treatment for Preterm Labor

NCT01406197
View directory record Official record
Conditions
Preterm Labor
Interventions
Experimental: Vaginal progesterone, Experimental: Topical progesterone, Experimental: Intramuscular progesterone
Drug
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
17 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Contraception and Menstrual Cycle Effect on Pharmacokinetics, Pharmacodynamics and Safety in Tenofovir Vaginal Gel Use

NCT01421368
View directory record Official record
Conditions
HIV Prevention
Interventions
Tenofovir 1% vaginal gel, Depo-medroxyprogesterone acetate (DMPA), Oral contraceptive: LNG 150 mcg and EE 30 mcg
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 9, 2015 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Oral Estradiol and Progesterone Therapy on Vaginal Cytokines in Postmenopausal Women

NCT02224313
View directory record Official record
Conditions
Menopause
Interventions
oral estradiol 1.0 mg, oral progesterone 100 mg
Drug
Lead sponsor
Intira Sriprasert
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 3 Interventional Results available

A Trial of Pessary and Progesterone for Preterm Prevention in Twin Gestation With a Short Cervix

NCT02518594
View directory record Official record
Conditions
Short Cervical Length
Interventions
Vaginal progesterone, Placebo, Arabin Pessary
Drug · Device
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
Female only
Enrollment
1,311 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
16
States / cities
Birmingham, Alabama • San Francisco, California • Denver, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Progesterone in Pregnancy

NCT03340701
View directory record Official record
Conditions
Progesterone
Interventions
vaginal progesterone suppository
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetic Study to Evaluate the Bioequivalence of 2 Progesterone Vaginal Rings in Postmenopausal Women

NCT02092571
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Progesterone vaginal ring,
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
40 Years to 70 Years · Female only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 8, 2021 · Synced Sep 3, 2026, 8:03 AM EDT
Completed No phase listed Observational

Endometrial Effects of Metformin Action in Women With Polycystic Ovarian Syndrome (PCOS)

NCT01070160
View directory record Official record
Conditions
Polycystic Ovarian Syndrome
Interventions
Endometrin (progesterone 100mg vaginal inserts), Metformin
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 29, 2020 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 3 Interventional Results available

Subcutaneous Progesterone Versus Vaginal Progesterone Tablets for Luteal Phase Support in In Vitro Fertilization (IVF)

NCT00828191
View directory record Official record
Conditions
In Vitro Fertilization
Interventions
Progesterone
Drug
Lead sponsor
IBSA Institut Biochimique SA
Industry
Eligibility
18 Years to 42 Years · Female only
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
8
States / cities
Redondo Beach, California • San Jose, California • Stanford, California + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2013 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 4 Interventional

Vaginal Compared to Intramuscular Progesterone for Frozen Embryo Transfer

NCT02254577
View directory record Official record
Conditions
Infertility
Interventions
Endometrin® plus Progesterone in Oil (PIO), Progesterone in Oil (PIO) Only
Drug
Lead sponsor
Shady Grove Fertility Reproductive Science Center
Other
Eligibility
18 Years to 48 Years · Female only
Enrollment
1,139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
14
States / cities
Washington D.C., District of Columbia • Annapolis, Maryland • Baltimore, Maryland + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 4 Interventional Results available

Comparison of Crinone 8% Intravaginal Gel and IM Progesterone Supplementation for In Vitro Fertilization (IVF)

NCT00656201
View directory record Official record
Conditions
Infertility
Interventions
Crinone 8% Vaginal Gel, Intramuscular Progesterone
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
21 Years to 39 Years · Female only
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 21, 2011 · Synced Sep 3, 2026, 8:03 AM EDT
Terminated Not applicable Interventional Results available

Cervical Pessary to Prevent Preterm Birth in Singleton Pregnancies With a Sonographically Measured Short Cervix

NCT02357394
View directory record Official record
Conditions
Premature Birth
Interventions
Arabin Pessary
Device
Lead sponsor
Gene Lee, MD
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
2
States / cities
Kansas City, Kansas • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced Sep 3, 2026, 8:03 AM EDT
Completed Phase 1 Interventional Results available

A Treatment Study for Premenstrual Syndrome (PMS)

NCT00001259
View directory record Official record
Conditions
Premenstrual Syndrome, Menstruation Disturbances
Interventions
Leuprolide, Estradiol Patches, Progesterone, Placebo patch, Placebo injection, Placebo suppository
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Sep 3, 2026, 8:03 AM EDT